What we do
Hydraulic Cylinder Repair & Rebuilding
From a single seal replacement to a full cylinder rebuild, MD Machine Works handles it all — for every make and model, with same-day service available across California.
Our Services
Cylinder Rebuilding
Complete teardown, inspection, and rebuild of hydraulic cylinders of all sizes and makes. We replace worn components, resurface barrels, and reassemble to OEM specifications so your cylinder performs like new.
Seal Replacement
Leaking seals are the most common cause of hydraulic failure. We stock a wide range of seal kits and can source custom seals for specialty cylinders — fast turnaround, no downtime surprises.
Rod Repair & Reconditioning
Bent, scored, or corroded rods reduce efficiency and damage seals. We straighten, grind, and re-chrome hydraulic rods to restore proper tolerances and extend the life of your cylinder.
Pressure Testing
Every rebuilt cylinder is pressure-tested before it leaves our shop. We verify holding pressure, check for internal and external leaks, and confirm full stroke operation under load.
Same-Day Emergency Service
Equipment downtime costs money. Call our 24-hour line and we will do everything possible to turn your cylinder around the same day — including emergency pick-up across Northern California.
Free Pick-Up & Delivery
We come to you. Our free pick-up and delivery service covers all of California, so you can stay focused on your job while we handle the repair logistics.
Every cylinder fully disassembled, inspected, and rebuilt to spec.
How It Works
Simple, fast, and transparent — from first call to final delivery.
Call or Schedule Pick-Up
Reach us on our 24-hour line. We will arrange free pick-up from your job site or shop anywhere in California.
Inspect & Quote
We fully disassemble and inspect the cylinder, then provide a clear quote before any work begins. No surprises.
Rebuild & Test
Our technicians rebuild the cylinder using quality parts and pressure-test it to confirm it meets spec before it leaves the shop.
Same-Day Delivery
We deliver the finished cylinder back to you — often the same day. Your equipment gets back to work fast.
Need a Repair? Call Us Now.
Same-day service available. Free pick-up and delivery throughout California.